That matters: maize remains central to Mexicans' diet and culture.
问题是：玉米依然在墨西哥日常饮食与文化的中心地位。
2
In a soil column culture and a field experiment, the comparison of root distribution of spreading-leaf and upright-leaf maize cultivars in Songnen Plain was studied.
采用土柱模拟栽培法与大田试验相结合的方法，对松嫩平原不同株型玉米的根系分布特征进行了比较。
3
The haploid breeding of maize is a technology that using anther culture or gynogenesis to produce haploid, and then obtain stable new varieties through natural or artificial doubling.